img {
    width: 100%;
    height: 100%;
}

header {
    margin: 40px 0 10px;
}

.card-body {
    font-family: "YouYuan", "Lantinghei SC";
}

#map {
    height: 400px;
}

.menu1 li:nth-child(1) a,
.menu2 li:nth-child(2) a,
.menu3 li:nth-child(3) a,
.menu4 li:nth-child(4) a
{
    background: #f1f1fc;
    color: #5755d9;
}